Nepean Bay Weather Forecast

    • 12
    • 29

    Sunny

    • 15
    • 23

    Partly cloudy

    • 13
    • 20

    Cloudy

    • 13
    • 20

    Cloudy

    • 11
    • 25

    Mostly sunny

    • 13
    • 24

    Shower or two

    • 14
    • 24

    Shower or two

Today 10 Mar Kangaroo Island

Sunny. Winds north to northwesterly 15 to 20 km/h tending northwest to southwesterly in the early afternoon then becoming light in the late afternoon. Daytime maximum temperatures in the high 20s.

Investigator Strait Coastal Waters

Wind
Variable about 10 knots.
Seas
Below 1 metre.
1st Swell
West to southwesterly below 1 metre.
Weather
Sunny.
Weather Situation
A high pressure system centred east of Tasmania extends a ridge over SA. The ridge will move eastwards today ahead of a cold front and trough expected to move across the west and south of SA during Wednesday. The trough will clear the northeast during Thursday and a high pressure ridge will move across waters well to the south. A low pressure trough will develop over the far west of SA on Friday then move eastwards next weekend.
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  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Nepean Bay Temperature Statistics View More

March Temperature

Kingscote Airport (7km)

  • Lowest 9 March, 2026

    7.6 °C

  • Average March

    17.4 °C

  • Highest 5 March, 2026

    27.1 °C

Climate (2021–Present)

Kingscote Airport (7km)

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  • Average Low 2021–2026

    9.2 °C

  • Average 2021–2026

    14.8 °C

  • Average High 2021–2026

    21.1 °C
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